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Square D LX36600 Molded Case Circuit Breaker

  • 600A
  • 3 Pole
  • I-Line
Square D LX36600
Molded Case Circuit Breaker
Brand Square D
SKU LX36600
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  • 600A
  • 3 Pole
  • I-Line

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Square D LX36600 3 Pole Circuit Breaker

Square D LX36600 - 600A 3 Pole Molded Case Circuit Breaker

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$3,594.21 In Stock

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Description

Engineered for commercial and industrial applications, the Square D LX36600 is a 600A, 3-pole molded case circuit breaker. It delivers reliable solid-state protection for heavy-duty electrical systems. This legacy breaker mounts into Square D I-Line panelboards and switchboards. For new installations or upgrades, it is replaced by the PowerPact LJA36600U43X, which requires an HNM1BL filler plate to adapt the footprint.

Specifications

Key specifications
Brand Square D
Part Number LX36600
Series LX
Amperage 600A
Poles 3
Mounting Style I-Line
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 35kA @ 600Y/347VAC, 35kA @ 600VAC
Electrical ratings
Amperage Range 300-600A
Fit and installation
Terminal Type Lugs
For Use With Square D I-Line Panelboards and Switchboards
Wire Gauge (2) 4/0 AWG-500 kcmil (Al/Cu)
Max Wire 500 kcmil
Min Wire 4/0 AWG
Protection and operation
Trip Technology Electronic Trip
Trip Function Code LSI
Trip Function Long-Time, Short-Time, Instantaneous
Trip Adjustability Adjustable
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories Load Side Lugs Included, Line Side Panel Connectors
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489
Approval CE, CSA, IEC, NOM, UL
Temp Rating 40C

Product FAQs

5 answers
Which panelboards are compatible with the LX36600 circuit breaker?

This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It utilizes a plug-in mounting style with jaws that engage directly with the I-Line bus stack.

What type of wire and gauge range is accepted by the lugs on the LX36600?

The factory lugs accept two conductors per phase, ranging from 4/0 AWG to 500 kcmil. You can terminate using either aluminum or copper wire.

How does the Micrologic Series B LSI trip unit function on this breaker?

The LSI designation means the electronic trip unit allows you to adjust the Long-Time, Short-Time, and Instantaneous trip settings. This provides precise coordination with other breakers in your electrical system compared to standard fixed thermal-magnetic units.

Is the LX36600 part of a current production series?

The LX series is classified as a legacy L-frame molded case circuit breaker. While newer PowerPact L-frame breakers are used in modern installations, the LX36600 remains a direct plug-in replacement for existing I-Line systems without requiring bus modifications.

Does the LX36600 require a separate mounting bracket for installation?

No. As an I-Line plug-in breaker, it features integrated mounting jaws that attach directly to the busbar assembly in I-Line panelboards, eliminating the need for separate mounting hardware or backpan drilling.

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Rating
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  • SD
    Sergio D.
    Flag of United States
    Reviewing
    Square D LXD1U7 Magnetic Coil
    I recommend this product
    Rated 5 out of 5 stars
    12/24/21
    Professional

    Great work got exactly what I ordered